Exercise devices for palms and fingers assemblies thereof and method of using the same

ABSTRACT

Devices and methods of exercising palms and fingers are described. The device includes an essentially cylindrical exterior hollow shell and an essentially cylindrical interior hollow shell.

TECHNICAL FIELD

In general, the present invention pertains to the art of physical exercise devices. In particular, the invention relates to an exercise device for palms and/or fingers, assemblies including a plurality of exercise devices as well as an exercise method of using the same.

BACKGROUND ART

It is believed that the current state-of-the-art is represented by U.S. Pat. No. 9,072,939 and US20130196825. U.S. Pat. No. 9,072,939 discloses a hand and finger exerciser having a frame, and a slide configured to move vertically with respect to the frame. US20130196825 discloses an improved finger exerciser to exercise each finger individually by depressing directly against the resistance of a spring.

DESCRIPTION OF THE DRAWINGS

The present invention will be understood and appreciated more comprehensively from the following detailed description taken in conjunction with the appended drawings in which:

FIG. 1A is a schematic front view of an exterior shell of an embodiment of the exercise device for palms and fingers;

FIG. 1B is a schematic side of an exterior shell of an embodiment of the exercise device for palms and fingers;

FIG. 1C is a schematic isometric view of an exterior shell of an embodiment of the exercise device for palms and fingers;

FIG. 2A is a schematic front view of an interior shell of an embodiment of the exercise device for palms and fingers;

FIG. 2B is a schematic side view of an interior shell of an embodiment of the exercise device for palms and fingers;

FIG. 2C is a schematic isometric view of an interior shell of an embodiment of the exercise device for palms and fingers;

FIG. 3A is a schematic front view of an outer shaft of an embodiment of the exercise device for palms and fingers;

FIG. 3B is a schematic front side of an outer shaft of an embodiment of the exercise device for palms and fingers;

FIG. 3C is a schematic isometric view of an outer shaft of an embodiment of the exercise device for palms and fingers;

FIG. 4A is a schematic front view of an inner shaft of an embodiment of the exercise device for palms and fingers;

FIG. 4B is a schematic side view of an inner shaft of an embodiment of the exercise device for palms and fingers;

FIG. 4C is a schematic isometric view of an inner shaft of an embodiment of the exercise device for palms and fingers;

FIG. 5A is a schematic side view of exemplary exercise device for palms and fingers, in accordance with an embodiment of the present invention;

FIG. 5B is a schematic cross-sectional view of the exemplary exercise device for palms and fingers, taken along cross-section line B-B in FIG. 5A, in accordance with an embodiment of the present invention;

FIG. 6A is a schematic front view of a preferred embodiment of a connector for exercise devices for palms and fingers;

FIG. 6B is a schematic cross-sectional view of a preferred embodiment of a connector for exercise devices for palms and fingers, taken along cross-section line B-B in FIG. 6A;

FIG. 6C is a schematic isometric view of a preferred embodiment of a connector for exercise devices for palms and fingers;

FIG. 7A is a schematic side view of a preferred embodiment of an assembly of two exercise devices for palms and fingers and one connector in-between;

FIG. 7B is a schematic front view of a preferred embodiment of an assembly of two exercise devices for palms and fingers and one connector in-between;

FIG. 7C is a schematic cross-sectional view of a preferred embodiment of an assembly of two exercise devices for palms and fingers and one connector in-between, taken along cross-section line C-C in FIG. 7A;

FIG. 8A is a schematic isometric view of a preferred embodiment of the exercise device for palms and fingers;

FIG. 8B is a schematic front view of a preferred embodiment of the exercise device for palms and fingers;

FIG. 8C is a schematic cross-sectional view of a preferred embodiment of the exercise device for palms and fingers, taken along cross-section line C-C in FIG. 8A;

FIG. 9A is a schematic isometric view of another preferred embodiment of the exercise device for palms and fingers;

FIG. 9B is a schematic front view of another preferred embodiment of the exercise device for palms and fingers;

FIG. 9C is a schematic cross-sectional view of another preferred embodiment of the exercise device for palms and fingers, taken along cross-section line C-C in FIG. 9A;

FIG. 10A is a schematic isometric view of yet another preferred embodiment of the exercise device for palms and fingers;

FIG. 10B is a schematic cross-sectional view of yet another preferred embodiment of the exercise device for palms and fingers, taken along cross-section line B-B in FIG. 10A;

FIG. 10C is a schematic cross-sectional view yet another preferred embodiment of the exercise device for palms and fingers, taken along cross-section line C-C in FIG. 10A;

FIG. 10D is an exploded isometric view of yet another preferred embodiment of the exercise device for palms and fingers.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown merely by way of example in the drawings. The drawings are not necessarily complete and components are not essentially to scale; emphasis instead being placed upon clearly illustrating the principles underlying the present invention.

DETAILED DISCLOSURE OF EMBODIMENTS

Illustrative embodiments of the invention are described below. In the interest of clarity, not all features of actual implementation are described in this specification. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with technology- or business-related constraints, which may vary from one implementation to another. Moreover, it will be appreciated that the effort of such a development might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

In accordance with some embodiments of the present invention, reference is now made to FIG. 1A to 5B, showing respectively front, side and isometric views of exterior shell 12 of an embodiment of exercise device 10 for palms and fingers. Exterior shell 12 shown in FIG. 1A to 1C embodies essentially cylindrically shaped hollow structure 14, terminating with essentially semi-spherical dome structure 16.

Dome structure 16 of exterior shell shown in FIG. 1A to 1C comprises recess 18 on the inner side, configured to accommodate the outer shaft (not shown) of the internal biasing mechanism (not shown). Manual force is exerted onto the outer surface of exterior shell 12 shown in FIG. 1A to 1C by the person undertaking exercise, therefore the outer surface of exterior shell 12 is preferably textured and/or coated with an ergonomic covering.

In accordance with some embodiments of the present invention, reference is now made to FIG. 2A to 5B, showing respectively front, side and isometric views of interior shell 20 of embodiment of exercise device 10 for palms and fingers. Interior shell 20 shown in FIG. 2A to 2C embodies essentially cylindrically shaped hollow structure 22, terminating with essentially semi-spherical dome structure 24.

Dome structure 24 of interior shell 20 shown in FIG. 2A to 2C comprises recess 26 on the inner side, configured to accommodate a terminal portion of the inner shaft (not shown) of the internal biasing mechanism (not shown). Manual force is exerted onto outer surface of exterior shell 28 shown in FIG. 2A to 2C by the person undertaking exercise, therefore outer surface of exterior shell 28 is preferably textured and/or coated with an ergonomic covering.

The outer diameter of interior shell 20 shown in FIG. 2A to 2C is somewhat smaller than the inner diameter of exterior shell 12 shown in FIG. 1A to 1C, so that cylindrically shaped hollow structure 22 of interior shell 20 shown in FIG. 2A to 2C is insertable into cylindrically shaped hollow structure 14 of exterior shell 12 shown in FIG. 1A to 1C and longitudinally translatable therein.

In accordance with some embodiments of the present invention, reference is now made to FIG. 3A to 3C, showing respectively front, side and isometric views of outer shaft 30 of an embodiment of the exercise device for palms and fingers. Outer shaft 30 shown in FIG. 3A to 3C embodies an essentially cylindrically shaped elongated hollow structure 32. Essentially cylindrically shaped elongated hollow structure 32 shown in FIG. 3A to 3C comprises elongated oval aperture 34 extending along a substantial portion of the lengths thereof.

In accordance with some embodiments of the present invention, reference is now made to FIG. 4A to 4C, showing respectively front, side and isometric views of inner shaft 40 of an embodiment of the exercise device for palms and fingers. The inner shaft 40 shown in FIG. 4A to 4C embodies essentially cylindrically elongated rod-shaped structure 42. Essentially cylindrically elongated rod-shaped structure 42 of inner shaft 40 shown in FIG. 4A to 4C comprises a circular aperture 44 towards one of the ends thereof.

In accordance with some embodiments of the present invention, reference is now made to FIG. 5A and 5B, a schematic side view of exemplary exercise device 10 for palms and fingers and a schematic cross-sectional view of the exemplary exercise device 10, taken along cross-section line B-B. Cylindrically shaped hollow structure 22 of interior shell 20 shown in FIG. 2A to 2C is insertable into cylindrically shaped hollow structure 14 of exterior shell 12 shown in FIG. 1A to 1C and longitudinally translatable therein.

Inner shaft 40 shown in FIG. 4A to 4C is inserted into outer shaft 30 shown in FIG. 3A to 3C comprises and longitudinally translatable therein. A locking pin (not shown) is inserted throughout into oval aperture 34 in the outer shaft 30 shown in FIG. 3A to 3C and the circular aperture 44 towards one of the ends of the inner shaft 40 shown in FIG. 4A to 4C, thereby locking the outer shaft 30 shown in FIG. 3A to 3C and the inner shaft 40 shown in FIG. 4A to 4C together.

A biasing means (not shown) is inserted into hollow portion 32 of outer shaft 30 shown in FIG. 3A to 3C resisting to the insertion of the inner shaft 40 shown in FIG. 4A to 4C into the outer shaft 30. The biasing means (not shown) typically comprises a spring, however, the usage of elastomers as a biasing means is equally contemplated by this disclosure.

In accordance with some preferred embodiments of the present invention, reference is now made to FIG. 6A to 6C, showing front, isometric and cross-sectional view taken along cross-section line B-B of connector 50, configured for interconnecting in-between two exercise devices 10 for palms and fingers (not shown) in tandem. Connector 50 for interconnecting in-between two exercise devices for palms and fingers (not shown) in tandem, shown in FIG. 6A to 6C, comprises essentially cylindrical discoid body 52 with two frusto-spherical concave recesses 54, on both sides of essentially cylindrical discoid body 52 of connector 50.

Magnet 56 is embedded into the partition dividing in between two frusto-spherical concave recesses 54 from both sides of the essentially cylindrical discoid body 52 of connector 50 shown in FIG. 6A to 6C. Magnet 56 is embedded into the partition dividing in between two frusto-spherical concave recesses 54 is configured to releasable docket two exercise devices for palms and fingers within the frusto-spherical concave recesses 54 of essentially cylindrical discoid body 52 of connector 50 shown in FIG. 6A to 6C.

In accordance with some preferred embodiments of the present invention, reference is now made to FIG. 7A to 7C, a showing side, front and cross-sectional view taken along cross-section line C-C of an embodiment of assembly of two exercise devices for palms and fingers connected by a connector 60. Assembly 60 shown in FIG. 7A to 7C comprises two exercise devices for palms and connector 62 disposed in-between the two exercise devices.

The exercise devices for palms and fingers of assembly 60 shown in FIG. 7A to 7C, in accordance with some embodiments of the present invention, are constructed essentially similarly to the exercise devices for palms and fingers elaborated supra and shown in FIG. 5A and 5B but shaped preferably somewhat shorter than the exercise devices for palms and fingers shown in FIG. 5A and 5B. Connector 62 in the assembly shown in FIG. 7A to 7C is essentially similar to the connector 50 shown in FIG. 6A to 6C.

The exercise devices for palms and fingers shown in FIG. 7A to 7C are magnetically docketed within frusto-spherical concave recesses 54 of essentially cylindrical discoid body 52 of connector 50 shown in FIG. 6A to 6C. Assembling an assembly, similar to the assembly 60 shown in FIG. 7A to 7C, combining exercise devices for palms and fingers having different biasing strengths, in order to compile an assembly of different accumulative strengths is contemplated as one preferred embodiment of method of the present invention.

In accordance with some preferred embodiments of the present invention, reference is now made to FIG. 8A to 8C, showing respectively isometric, front and cross-sectional views of the exercise device 100 for palms and fingers. Exercise device for palms and fingers 100 shown in FIG. 8A to 8C embodies an essentially cylindrically shaped hollow exterior shell 110 and interior shell 112, terminating with essentially semi-spherical dome structure 114.

It is noted that a preferable embodiment of hollow exterior shell 110 and interior shell 112 of exercise device for palms and fingers 100 shown in FIG. 8A to 8C is a cylindrical shape, sustaining rotation of exterior shell 110 relative to interior shell 112 and vice versa. Rotation of exterior shell 110 relative to interior shell 112 facilitates a yet broader range of exercises achievable by device 100. In embodiments where a non-cylindrical shape of exterior shell 110 and interior shell 112 is implemented, no rotation of exterior shell 110 relative to interior shell 112 is possible.

Dome portion 114 of exterior shell 110 shown in FIG. 8A to 8C comprises recess 116 on the inner side, configured to accommodate a proximal terminal portion of the inner shaft 118, typically by a means of screw threading. Distal terminal portion 120 of inner shaft 118 of exercise device 100 for palms and fingers comprises a cap like structure, having an exterior diameter larger than the elongated central portion of shaft 118.

Interior shell 112 shown in FIG. 8A to 8C comprises an inner tubular structure 122, accommodating the biasing mechanism (not shown). Inner tubular structure 122 comprises a plurality of elongated recesses, defining a plurality of forwardly extending arms, which terminate with unidirectional locking elements 124. Upon surpassing the cap like structure at the terminal portion of inner shaft 118, the plurality of forwardly extending arms lock with the unidirectional locking elements 124 interior shell 112 and inner shaft 118.

In accordance with some other preferred embodiments of the present invention, reference is now made to FIG. 9A to 9C, showing respectively isometric, front and cross-sectional views of a miniature exercise device 200 for palms and fingers. Miniature exercise device 200 shown in FIG. 9A to 9C embodies an essentially cylindrically and/or spherically shaped hollow exterior 210 and interior shells 212, terminating with an essentially semi-spherical dome structure 214.

Dome portion 214 of exterior shell 210 shown in FIG. 9A to 9C comprises a tubular extension 216 on the inner side, configured to accommodate a biasing mechanism (not shown). Tubular extension 216 on the inner side of dome portion 214 of exterior shell 210 shown in FIG. 9A to 9C comprise a plurality of elongated recesses 218, defining a plurality of interlocking arms, which terminate with inwardly facing unidirectional locking elements. Interior shell 212 shown in FIG. 9A to 9C comprises an inner tubular structure 220, accommodating the biasing mechanism (not shown) and optionally an abutment therefor. Inner tubular structure 220 on interior shell 212 shown in FIG. 9A to 9C comprises a plurality of elongated recesses 222, defining a plurality of interlocking arms, which terminate with outwardly facing unidirectional locking elements 224. Upon surpassing the inwardly facing unidirectional locking elements 224 on interlocking arms of tubular extension 216 on inner side 214 of dome portion 210 of exterior shell shown in FIG. 9A to 9C, the outwardly facing unidirectional locking elements on plurality of interlocking extending arms of inner tubular structure 220 on interior shell 212, lock exterior shell 210 to interior shell 212.

In accordance with some other preferred embodiments of the present invention, reference is now made to FIG. 10A to 10D, showing respectively isometric, cross-sectional view taken along cross-section line B-B, cross-sectional view taken along cross-section line C-C as well as an exploded isometric view of the exercise device 300 for palms and fingers, characterized by several easily exchangeable grades and/or levels of exercise strength. Exercise device 300 shown in FIG. 10A to 10D embodies an essentially cylindrically shaped hollow exterior shell 310, terminating with an essentially semi-spherical dome structure 312.

Dome structure 312 of exterior shell 310 shown in FIG. 10A to 10D comprises a recess on the inner side, configured to accommodate one terminal portion of the inner shaft 314, typically by a means of screw threading. Another terminal portion of inner shaft 314 of exercise device 300 for palms and fingers comprises a cap like structure, having an exterior diameter 316 larger than the elongated central portion of the shaft 314.

A drum rotatable upon inner shaft 314 comprises a plurality of elongated apertures, extending throughout body of the drum 318. The plurality of elongated apertures, extending throughout body of the drum 318, are entirely open at one end and partially occluded at the other end, defining throughout apertures therein.

The plurality of elongated apertures configured to accommodate a plurality of biasing mechanisms (not shown), of different levels of biasing strength. The plurality of elongated apertures accommodate a plurality of head elements for biasing mechanisms (not shown), disposed in-between the biasing mechanisms (not shown) and the throughout apertures in partially occluded ends of drum 318.

The exterior shell 310 shown in FIG. 10A to 10D accommodates an abutment for a pointing element, such as ball 320, shown in FIG. 10C, whereas the plurality of head elements for biasing mechanisms (not shown), disposed underneath the throughout apertures in partially occluded ends of the elongated apertures in drum 318, comprise a recess configured to engage with the outwardly protruding portion of the pointing element.

The entirely open ends of elongated apertures in the body of drum 318 are covered by annular cover 320. Annular cover 320 is affixed to drum 318, from the side of open entirely ends of elongated apertures, for instance by a means of a bolt or rivet 322.

Upon rotating the exterior shell 310 relatively to interior shell 324, each time the head of a different biasing mechanism (not shown), in a different throughout aperture of drum 318, is engaged to the outwardly protruding element of the pointing part 321, via the throughout apertures in partially occluded end of respective elongated aperture in drum 318. Upon engaging the outwardly protruding portion of the pointing element, to the head of a given biasing mechanism (not shown), in a given elongated aperture in the drum, the respective biasing mechanism (not shown) with a particular level of biasing strength is preselected for the exercise with the device.

It will be appreciated by persons skilled in the art that the present invention is not limited by what has been particularly shown and described herein above. Rather the scope of the invention is defined by the claims which follow: 

1. A configurable exercise device for palms and fingers comprises: a) a cylindrical exterior hollow shell terminating with an essentially semi-spherical dome structure; wherein said dome structure of said exterior shell comprises a recess on an inner side; b) a cylindrical interior hollow shell terminating with an essentially semi-spherical dome structure; wherein said dome structure of said interior shell comprises a recess on an inner side; wherein said interior shell is insertable into said exterior shell and longitudinally translatable therein; c) an essentially elongated hollow outer shaft, wherein said outer shaft affixable in at least one recess selected from the group consisting of: said recess on said inner side of said dome structure of said exterior shell and said recess on said inner side of said dome structure of said interior shell; d) an essentially elongated inner shaft, wherein said inner shaft is affixable in at least one recess selected from the group consisting of: said recess on said inner side of said dome structure of said exterior shell and said recess on said inner side of said dome structure of said interior shell; wherein said inner shaft is insertable into said essentially elongated hollow outer shaft and longitudinally translatable therein; e) a plurality of biasing mechanisms, wherein said biasing mechanisms are configured to drive said cylindrical exterior hollow shell away from said cylindrical interior hollow shell; wherein each one of said plurality of said biasing mechanisms comprises a biasing mechanism of a different biasing strength; f) a revolving drum configured to accommodate said plurality of said biasing mechanisms of said different biasing strengths; wherein said revolving drum is configured for selecting a specific biasing mechanism, of a particular biasing strength, from said plurality of said biasing mechanisms, upon rotation of said drum; thereby forming a plurality of configurations of said configurable exercise device, wherein said plurality of said configurations of said configurable exercise device are characterized by different biasing strengths.
 2. The configurable exercise device according to claim 1, wherein an outer diameter of said interior shell is less than an inner diameter of said exterior shell.
 3. The configurable exercise device according to claim 1, wherein an exterior surface of said shells comprises a textured or ergonomic covering.
 4. An assembly comprises: a) a first configurable exercise device according to claim 1; b) a second configurable exercise device according to claim 1; c) a connector comprises an essentially cylindrical discoid body with two frusto-spherical concave recesses on both sides of said discoid body of said connector; wherein said connector comprises a magnet embedded into a partition dividing in between said two frusto-spherical concave recesses; d) wherein said connector is configured to interconnect in-between said first configurable exercise device and said second configurable exercise device in tandem.
 5. The assembly according to claim 4, wherein said assembly comprises said first and second configurable exercise devices having different biasing strengths.
 6. The configurable exercise device according to claim 1, wherein a proximal terminal of said inner shaft is configured to be accommodatable to said dome of said exterior shell comprises said recess on said inner side; wherein a distal terminal of said inner shaft of said exercise device comprises a cap which have an exterior diameter larger than the elongated central of said inner shaft; wherein said interior shell comprises an inner tubular structure accommodating said biasing.
 7. The configurable exercise device according to claim 1, wherein said inner shaft comprises a circular aperture towards one of the ends thereof.
 8. The configurable exercise device according to claim 1, wherein said outer shaft comprises an elongated oval aperture extending along a substantial portion of the lengths thereof.
 9. The configurable exercise device according to claim 1, wherein each one of said plurality of said biasing mechanisms comprises a pointing element, wherein said configurable exercise device comprises a plurality of recesses configured to engage with said pointing element thereby affixing said configurable exercise device in a preselected configuration, of said plurality of said configurations.
 10. The configurable exercise device, according to claim 1, wherein said revolving drum further comprises a plurality of elongated apertures, extending throughout said drum; wherein said plurality of said elongated apertures are configured to accommodate said plurality of biasing mechanisms.
 11. A configurable exercise device for palms and fingers comprises: a) a cylindrical exterior hollow shell terminating with a semi-spherical dome structure; wherein said dome structure of said exterior shell comprises a recess on an inner side; b) a cylindrical interior hollow shell terminating with a semi-spherical dome structure; wherein said dome structure of said interior shell comprises a recess on an inner side; wherein said interior shell is insertable into said exterior shell and longitudinally translatable therein; c) an elongated hollow outer shaft, wherein said outer shaft is affixable in at least one recess selected from the group consisting of: said recess on said inner side of said dome structure of said exterior shell and said recess on said inner side of said dome structure of said interior shell; d) an elongated inner shaft, wherein said inner shaft is affixable in at least one recess selected from the group consisting of: said recess on said inner side of said dome structure of said exterior shell and said recess on said inner side of said dome structure of said interior shell; wherein said inner shaft is insertable into said elongated hollow outer shaft and longitudinally translatable therein; e) a plurality of biasing mechanisms, wherein said biasing mechanisms are configured to drive said cylindrical exterior hollow shell away from said cylindrical interior hollow shell; wherein each one of said plurality of said biasing mechanisms comprises a biasing mechanism of a different biasing strength; f) a revolving drum configured to accommodate said plurality of said biasing mechanisms of said different biasing strengths; wherein said revolving drum is configured for selecting a specific biasing mechanism, of a particular biasing strength, from said plurality of said biasing mechanisms, upon rotation of said drum; thereby forming a plurality of configurations of said configurable exercise device, wherein said plurality of configurations of said configurable exercise device are characterized by different biasing strengths a.
 12. The configurable exercise device according to claim 11, wherein an outer diameter of said interior shell is less than an inner diameter of said exterior shell.
 13. The configurable exercise device according to claim 11, wherein an exterior surface of said shells comprises a textured or ergonomic covering.
 14. An assembly comprises: a) a first configurable exercise device according to claim 11; b) a second configurable exercise device according to claim 11; c) a connector comprises an essentially cylindrical discoid body with two frusto-spherical concave recesses on both sides of said discoid body of said connector; wherein said connector comprises a magnet embedded into a partition dividing in between said two frusto-spherical concave recesses; d) wherein said connector is configured to interconnect in-between said first configurable exercise device and said second configurable exercise device in tandem.
 15. The configurable exercise device according to claim 11, wherein each one of said plurality of said biasing mechanisms comprises a pointing element, wherein said configurable exercise device comprises a plurality of recesses configured to engage with said pointing element thereby affixing said configurable exercise device in a preselected configuration, of said plurality of said configurations.
 16. The configurable exercise device according to claim 11, wherein a proximal terminal of said inner shaft is configured to be accommodatable to said dome of said exterior shell comprises said recess on said inner side; wherein a distal terminal of said inner shaft of said exercise device comprises a cap which have an exterior diameter larger than the elongated central of said inner shaft; wherein said interior shell comprises an inner tubular structure accommodating said biasing.
 17. The configurable exercise device, according to claim 11, wherein said revolving drum further comprises a plurality of elongated apertures, extending throughout said drum; wherein said plurality of said elongated apertures are configured to accommodate said plurality of biasing mechanisms.
 18. A method of exercising palms and fingers comprises: a) providing a configurable exercise device for palms and fingers comprising: (i) a cylindrical exterior hollow shell terminating with an essentially semi-spherical dome structure; wherein said essentially semi-spherical dome structure of said exterior hollow shell comprises a recess on an inner side; (ii) a cylindrical interior hollow shell terminating with an essentially semi-spherical dome structure; wherein said essentially semi-spherical dome structure of said interior shell comprises a recess on an inner side; wherein said cylindrical interior hollow shell is insertable into said cylindrical exterior hollow shell and longitudinally translatable therein; (iii) an essentially elongated hollow outer shaft, wherein said outer shaft is affixable in at least one recess selected from the group consisting of: said recess on said cylindrical inner hollow side of said essentially semi-spherical dome structure of said cylindrical exterior hollow shell and said recess on said inner side of said essentially semi-spherical dome structure of said cylindrical interior hollow shell; (iv) an essentially elongated inner shaft, wherein said inner shaft comprising is affixable in at least one recess selected from the group consisting of: said recess on said inner side of said essentially semi-spherical dome structure of said cylindrical exterior hollow shell and said recess on said inner side of said essentially semi-spherical dome structure of said cylindrical interior hollow shell; (v) wherein said inner shaft is insertable into said essentially elongated hollow outer shaft and longitudinally translatable therein; (vi) a plurality of biasing mechanisms, wherein said biasing mechanisms are configured to drive said cylindrical exterior hollow shell away from said cylindrical interior hollow shell; wherein each one of said plurality of said biasing mechanisms comprises a biasing mechanism of a different biasing strength; (vii) a revolving drum configured to accommodate said plurality of said biasing mechanisms of said different biasing strengths; wherein said revolving drum is configured for selecting a specific biasing mechanism, of a particular biasing strength, from said plurality of said biasing mechanisms, upon rotation of said drum; thereby forming a plurality of configurations of said configurable exercise device, wherein said plurality of configurations of said configurable exercise device are characterized by different biasing strengths; b) exerting a manual compressing force onto at least one member selected from the group consisting of: said cylindrical exterior hollow shell and said interior shell; c) releasing said manual compressing force; d) iteratively repeating said steps of exerting and releasing; e) rotating said drum and thereby preselecting a specific biasing mechanism, of a particular biasing strength, from said plurality of said biasing mechanisms.
 19. The method of exercising palms and fingers, according to claim 18, wherein each one of said biasing mechanisms of said configurable exercise device comprises a pointing element and wherein said configurable exercise device further comprises a plurality of recesses configured to engage with said pointing element, thereby affixing said configurable exercise device in a preselected configuration, of said plurality of said configurations, said method further comprises a step of affixing said configurable exercise device in said preselected configuration.
 20. The method of exercising palms and fingers, according to claim 18, wherein said revolving drum of said configurable exercise device further comprises a plurality of elongated apertures, extending throughout said drum; wherein said plurality of said elongated apertures are configured to accommodate said plurality of biasing mechanisms. 